Mathcad

I can't get this to do anything. It's such a piece of junk.Does this actually work? Won't find anything - won't replace (Text or Math) I am on Prime 7

Hi all, I have a range z from 0 to 11,5m I've created function y(z)I want to extract the values of y(z) as an array and extract the array to Excel. Is it possible to extract the values as an array without converting z to a vector? Best regards,Anders  

Hi everyone,I am converting Mathcad 15 files to Prime and I encounter an issue that I can't debug. Its about a division between two vectors where the divisor has zeros in it. Prime shows the following error: This expression is divided by zero. It cannot be computed. While Mathcad 15 has no problem with this division. I attached an image to illustrate the problem. Regards, 

A hare from point 0 needs to cross a field with a length Δ and with two parallel straight edges as quickly as possible. The hare runs in a straight line perpendicular to the starting edge of the field and comes across the edge of a round section (point 1) where the hare can run faster (this round section of radius r is in the middle of the field). The hare changes direction of running, crosses a round section along a chord, runs out of it with a change of direction (point 2) and finishes along the shortest path (point 3). Determine the hare's running trajectory.  Why is the Snell's law fulfilled at point 2, but not at point 1? Where is my mistake or misunderstanding of physics (Fermat's principle)? See please the picture and the Prime 6 sheet in attach. See too The problem of cockroach races - PTC Community  

In my company, we use a library of files, which are included in our projects. These files can be for example datasheets of components, formulas out of toolboxes and so on. If we open a project file we encounter very often the problem that include files are marked red, meaning Mathcad reports an error with the file. The fact is, that there is no error in the file:We found a workaround for this, but this takes a lot of time. When you edit the path, you can force MathCad to reread the file and the error is gone. This has to be done for all marked files. Sometimes even this does not work. Then you have to open the corresponding file, recalculate and store it again.As we have include files, which include other files, this can get very very nasty. I reported this already more than 2 years ago, but no reaction. Now this problem got even worse. As the network path changed, MathCad hanged or got extremely slow (hours !), when opening a file with include file paths still on the old, not anymore

Question as per attached Prime 7Thanks 

Good morning, I would like to know if anyone knows why this event happens, it turned out that I was working in mathcad 6.0 and my computer turned off, once I started it again I tried to open mathcad to continue with my programming and the program never opened again, it only opens that green window and then closes.   Translated with DeepL TranslatorTranslated by Hedy Jin, Nov 26th, 2021 ---------------------------------------------------------------------------------------------- buenos dias, quisiera saber si alguien conoce por que sucede este evento, resultó que estaba trabajando en mathcad 6.0 y mi ordenador se apago, una vez lo inicie de nuevo intente abrir mathcad para continuar con mi programación y el programa nunca volvió abrir, solo abre esa ventana verde y luego se cierra    

Hi, I converted a Mathcad 15 file to Prime and most of the results are different. These differences are due to the way in which Mathcad 15 and Prime append vectors vertically (see image). The solution I found was to transpose the matrix in Prime (see AzD_(j,jw) in image). Unfortunately for this particular Mathcad 15 file, there are several matrices that have the same issue and I would have to transpose each one of them individually. I wonder if there is a way to automatically change all the matrices in Prime that have this issue. I tried changing the range of (j,jw) without success. P.S. I attached a Prime and Mathcad file exemplifying the issue. Thank you!

Hello everyone I have been a bit puzzled by the error I get when using find with vector variables. I have defined a triangle DEF in 2 dimensions. I am searching for the coordinates of a 4th point S such that the sum of vectors from S to the other points is a zero vector (weighed with parameters g and t). Unfortunately, find does not find a solution.I thought maybe it was due to a divide by zero error, but adding the constraint that the product of the norms must be strictly positive does not solve the problem. The initial guess is already fairly close to the solution, so I don't believe it is the issue.I have attached the mcdx file as well as a screenshot for convenience. Any idea of what is going wrong ?  François 

Hello, Right, mathcad and trig do not seem to be living a harmonious lifestyle. I ask why? I'm going through some fairly basic questions for an assignment for school and again on paper everything is rosy, but then mathcad is unconvinced. I am seeming unable to input the inverse trig functions in any form which I know (sin^-1, asin) and then as you can see in question 8 in the file attached the answer is absolutely wrong. What's the issue?! Is it me? Admittedly quite possible but I think I have tried all of the obvious approaches but I am likely wrong. thank you in advance for any help which you can offer me! Much MathCad love,Rowan 

Hello all, several days ago, I've updated my MathCad version to Prime 7.0.0.0.However, now I'm facing problems with my old scripts as it seems that the new version is not able to simplify as good as the old version. For example:   Obviously, the equation is 0 if test is a real number.Also, the equation was simplified to 0 in the old version. Even if I set test = 1, it is not simplified: Is there any possibility to improve this new behavior?Or is a different semantic required in the new version? Thanks in advance and best regards!

Apparently, https://www.poshenloh.com/quadraticdetail/ shows a 'new" way of solving quadratic equations.It is described as "computationally-efficient, .."  Math Genius Has Devised a Wildly Simple New Way to Solve Quadratic Equations (sciencealert.com)Does anyone know how to do timing tests in mathcad to check the difference in speeds in the "new" and the generally old method?  

Dear mathcad'ers,   I really need help.   I am trying to make an iteration process for an airlift reactor. The iteration procedure can be found in the word document, together with the mathcad file, below. However, I Mathcad isn't able to find the previous value of an parameter. How can I solve this?   Thanks for your expertise and help.   Tim

Hey, I would like to do the following in Mathcad Prime 7.0:So an index in an index. At the moment, whenever i press the index button in an index it sets me back up to normal but doesn't do another index.Is there a way to do it?Greetings

Is there a way to use plot phasors of voltages and currents (complex numbers in rectangular or polar form)? I would like to do this without creating custom functions, if possible.

I've imported a MathCAD 15 document into PTC Mathcad Prime 7.   I want to add grids to the plots.  I don't know how.  The documentation doesn't match what I see in PTC Mathcad Prime 7.   Not sure what to do.

Hi all trying to get a mathcad function that returns an rounded match from a table the example is attached, I could put the figures within a graph and use the interpret function but i want a rounded answer to the next D610. i.e. for the attached sheet the solution would be 1.7m when the looking for an F of 27kNm in column F610  i.e. not an exact match, therefore selecting the higher value in column D610. i.e. in excel this would be a Vloop/match function.   ThanksBen 

I am getting very strange error in Mathcad Prime Has anyone seen it. If yes how to solve this and where I am doing wrong 

Is there  a simple way to display a complex number in polar form (that includes the angle operator) without manually finding the magnitude and angle? 

Whilst playing around with the Is Element Of operator in Mathcad Express 7, I noticed the following:     I was surprised to see that Mathcad thinks that NaN is a Real (and hence Complex), but not an integer.      Is this just a case where one should expect inconsistent results from applying non-NaN-specific functions to a NaN?  If so, I think there should be a warning about this behaviour on the Is Element Of Help page.   Or is it something that should be corrected?   The red error arises because only the symbolic processor can test for rationals and Mathcad Express doesn't have symbolics.  Consequently, I don't know whether Is Element Of's NaN behaviour extends to symbolics.   Stuart   I discovered the above whilst trying to write a couple of data type identification functions.      

HiI am currently converting files from 15 to Prime which must of it have been successful.I have an issue with this equation below:Here are the input:I can plot the data easily, but I cannot get the intersection point which im trying to with the root function.It works in mathcad 15:    

I have created a vector that has both positive and negative values. I would like to sum all the positive values, return the number, and then separately sum the negative numbers and return the number. Is this possible? Thanks,  Ross 

Hello Experts, I am pretty new to mathcad and unable to understand what I am missing in program I have written.  Any help is appreciated 

I have two ode's that have a parameter. When I set the parameter to zero some (but not all) the solvers give results that might be reasonable. But, if I make that parameter a very small number, none of the solvers work even though this would not seem to make the equations parthological. Does anyone have some insight to what is going on? Thanks.

Hello, is it possible to convert MCDX-files backwards to MCD-files? Best regardsMichael